.

Wednesday, August 16, 2017

Focal and optical trapping behaviors of radially polarized vortex beam with broken axial symmetry

Zhongsheng Man, Luping Du, Yuquan Zhang, Changjun Min, Shenggui Fu, and Xiaocong Yuan

We explore a radially polarized vortex beam with broken axial symmetry under tight focusing conditions. The beam’s three mutually orthogonal polarization components (radial, azimuthal, and longitudinal) are all rotated by an angle of π/2 with respect to the input field in the focal plane. We validate this effect experimentally. Finally, we prove that this effect can be used to transport nanoparticles.

DOI

No comments: